Year current US$ 1976 159999.99642372102 1977 70000.0002980232 1978 5630000.11444092 1979 9939999.5803833 1980 11739999.7711182 1981 5559999.94277954 1982 930000.007152557 1983 680000.007152557 1984 2970000.02861023 1985 4670000.07629395 1986 2759999.99046326 1987 239999.994635582 1988 340000.00357627904 1989 -209999.993443489 1995 159999.99642372102 1996 180000.00715255702 1997 259999.990463257 1998 270000.010728836 1999 419999.986886978 2001 1000000 2002 879999.995231628 2003 1590000.0333786 2004 850000.023841858 2005 3049999.95231628 2006 2839999.91416931 2007 7889999.8664856 2008 19079999.9237061 2009 9779999.73297119 2010 10899999.6185303 2011 11069999.6948242 2012 19370000.8392334 2013 23389999.3896484 2014 25110000.6103516 2015 7440000.05722046 2016 6909999.84741211 2017 31440000.5340576 2018 25309999.4659424 2019 29309999.4659424 2020 24889999.3896484 2021 22450000.762939498 2022 11260000.2288818